package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.CategoryDTO;
import com.sky.dto.CategoryPageQueryDTO;
import com.sky.entity.Category;
import com.sky.exception.DeletionNotAllowedException;
import com.sky.mapper.CategoryMapper;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.result.PageResult;
import com.sky.service.CategoryService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.util.List;

@Service
public class CategoryServiceImpl implements CategoryService {
    @Autowired
    private CategoryMapper categoryMapper;
    @Autowired
    private DishMapper dishMapper;
    @Autowired
    private SetmealMapper setmealMapper;


    @Override
    public void inster(CategoryDTO categoryDTO) {
        Category category = new Category();
        BeanUtils.copyProperties(categoryDTO, category);
        category.setStatus(StatusConstant.DISABLE);
        categoryMapper.inster(category);

    }

    @Override
    public PageResult selectid(CategoryPageQueryDTO categoryPageQueryDTO) {
        PageHelper.startPage(categoryPageQueryDTO.getPage(), categoryPageQueryDTO.getPageSize());
        List<Category> categoryList = categoryMapper.selectid(categoryPageQueryDTO);
        Page<Category> c = (Page<Category>) categoryList;
        return new PageResult(c.getTotal(), c.getResult());
    }

    @Override
    public void delete(Long id) {
        Integer count = dishMapper.countByCategoryId(id);
        if (count > 0) {
            //当前分类下有菜品，不能删除
            throw new DeletionNotAllowedException(MessageConstant.CATEGORY_BE_RELATED_BY_DISH);
        }

//查询当前分类是否关联了套餐，如果关联了就抛出业务异常
        Integer count1 = setmealMapper.countByCategoryId(id);
        if (count1 > 0) {
            //当前分类下有菜品，不能删除
            throw new DeletionNotAllowedException(MessageConstant.CATEGORY_BE_RELATED_BY_SETMEAL);
        }

//删除分类数据
        categoryMapper.delete(id);
    }

    @Override
    public void update(CategoryDTO categoryDTO) {
        Category category = new Category();
        BeanUtils.copyProperties(categoryDTO, category);
        categoryMapper.update(category);
    }

    @Override
    public void stopstart(Integer status, Long id) {
        Category category = new Category();
        category.setStatus(status);
        category.setId(id);
        categoryMapper.update(category);

    }

    @Override
    public List<Category> select(Integer type) {
            return categoryMapper.select(type);
        }

    }







